Corleone
Fish Herder
Dang, that sucks. If you know the proportions you'll need to add, I'd say start the first ammonia dose now, and hope the kit gets there before you need to redose (the first one takes a while). But if you'll have to test to get it right, then you're stuck. Plus, if it's already that late, I'd hate to get started and then have even that little work go to waste if it doesn't come this week, either.